Students in the ACHA€“NCHA survey were asked €˜€˜Within the last two weeks, how many times have you had five or more drinks of alcohol at a sitting?€ The results are given inTable 2.13.

(a) What percent of all respondents answered zero?
(b) Of the students who answered five or more days, what percent are male?
(c) What percent of males report having five or more drinks at a sitting on three or more days in the last two weeks?
(d) What percent of females report having five or more drinks at a sitting on three or more days in the last two weeks?

Use data on college students collected from the American College Health Association€“National College Health Assessment survey conducted in Fall 2011. The survey was administered at 44 colleges and universities representing a broad assortment of types of schools and representing all major regions of the country. At each school, the survey was administered to either all students or a random sample of students, and more than 27,000 students participated in the survey.  

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Total 18,712 Female Male 5402 13,310 3678 5825 1878 853 1-2 2147 966 358 3-4 912 495 5 + Total 8956 18,312 27,268